Using the minimally invasive procedure involves a small incision in the back. Using a portable X-ray machine, the surgeon locates the diseased vertebral levels. Making the smallest incision possible, the surgeon uses a combination of dilators and tubular retractors to access the vertebra and remove the degenerative disc. An implant with bone graft is placed in the empty space; this realigns the vertebral bones and relieves pressure on the nerve roots. Screws are then inserted and fixed. Advantages of the minimally invasive TLIF procedure over traditional spine surgery include smaller incision and less disruption to muscle tissue. Most patients can return to normal activity within 2-3 weeks following surgery. Advantages of Minimally invasive techniques in spinal surgery are- reduced length of hospital stay, blood loss, and requirements for post-surgery pain killers. Patients who undergo this surgery tend to return to work earlier.